What if we encounter quality issues?

We stand behind our products 100%. In the rare case of any issues: Report immediately with details/photos. Our quality team will investigate within 24 hours. We'll provide solutions including replacement, refund or compensation.

Do you offer customized solutions?

Yes! We specialize in: 1.Custom sizes and thicknesses, 2.Special adhesive formulations, 3.Die-cutting and slitting, 4.Private labeling, 5.Special packaging requirements. Contact us, get the free samples now!

Black EPDM Foam Tape with Strong Closed Cell for Construction Joint Sealing

Name: Black EPDM Foam Tape with Strong Closed Cell for Construction Joint Sealing
Brand: Dongguan Gmark New Material Technology Co., Ltd
SKU: 2326378575

Guangdong, ChinaDongguan Gmark New Material Technology Co., Ltd

US$0.50

50-199 Rolls

US$0.46

200-499 Rolls

US$0.42

500+ Rolls

Sample price:US$0.10/piece.Request sample

Product profile

Customization

Available

Material

EPDM Foam

Usage

Doors & Windows

Model NO.

G-EPDM

Type

Foam

Sectional Shape

Rectangle

Performance

Temperature

Vulcanization

Non-continuous Vulcanization

Standard

Length

10m/20m/50m or Customization

Temperature Resistance

-20℃~120℃

Peel Adhesion

20-28n/25mm

Holding Power

≥ 48h

Release Liner

Yellow/White Liner

Thickness

0.5mm/1.0mm/1.5mm/2.0mm/3.0mm/4.0mm

Width

10mm/15mm/20mm/30mm Customization

Adhesive Type

Solvent Acrylic

Flame Retardant

UL94 Hf-1 / RoHS Compliant

Transport Package

Standard Package for Export

Specification

Customization

Trademark

GMARK

Origin

Dongguan

HS Code

4016931000

Production Capacity

50000

Key features

Excellent Weatherproofing: The closed cell EPDM foam blocks rain, snow, and moisture, protecting construction joints, roofs, and outdoor structures from water damage and freeze thaw cycles.

Strong Construction Joint Sealing: Bonds firmly to concrete, metal, and masonry surfaces, creating a durable seal that accommodates expansion and contraction without cracking or losing adhesion.

Wide Temperature Stability: Performs reliably from minus 40 to 120 degrees Celsius, staying flexible in winter cold and stable under hot summer sun exposure.

High Density Foam Structure: The dense EPDM foam resists compression and deformation, maintaining sealing pressure in heavy load joints and high traffic areas over time.

Superior Ozone and UV Resistance: The saturated EPDM polymer resists ozone attack and ultraviolet degradation, preventing surface cracks and extending service life in outdoor construction applications

Excellent Water and Air Barrier: The closed cell structure blocks water vapor, dust, and air infiltration, improving energy efficiency in buildings and reducing drafts around openings.

Vibration and Impact Damping: The foam absorbs mechanical shocks and dampens vibration, protecting pipes, ductwork, and structural connections from fatigue and noise transmission.

Easy Self Adhesive Installation: The pressure sensitive backing bonds quickly to clean surfaces without special tools, reducing labor time on construction sites and production lines.

Resistant to Aging and Chemicals: Withstands mild acids, alkalis, and salts without swelling or crumbling, suitable for coastal areas and industrial environments with chemical exposure.

Versatile Construction Applications: Ideal for roofing seals, concrete joints, pipe insulation, HVAC ducts, expansion gaps, and prefabricated panel connections across residential and commercial projec

Company profile

Experienced TeamCustomization from DesignsOEM ServicesR&D Capabilities

Dongguan Gmark New Material Technology Co., Ltd

Guangdong, China

Business Type: Manufacturer/FactoryExport Year: 2014-05-16Nearest Port: YANTIAN PORTAverage Response Time: ≤0.61hTerms of Payment: T/T, PayPal, Western Union, etc.International Commercial Terms(Incoterms): FOB, EXW, CIF, DDP, DAP, CIP

AI-Powered supplier vetting

SummaryDongguan Gmark New Material Technology Co., Ltd. is a Chinese manufacturer/factory located in Dongguan, Guangdong. It provides 3D software design, ODM, OEM for well-known brands, SDK support, and broad customization services. The supplier reports no new products launched in the past year, while financial-record periods are identified for the previous three years without substantive performance figures. Overseas infrastructure is limited: no overseas agents or branches, warehouse, showroom, or offline trade-show participation, and zero countries listed for overseas services. After-sales activities include debugging, maintenance, repair, training, and equipment installation, but overseas delivery capability is not established. Lead time is stated as within 15 working days in both peak and off-season, and written procedures exist for supplier assessment, corrective actions, and complaint handling. Certification and formal quality-assurance status are not provided.

Supplier typeThe supplier is explicitly identified as a manufacturer/factory and a limited company based in Dongguan, Guangdong, China. Its associated-company industry is manufacturing, supporting classification as a direct manufacturing supplier rather than a trading-only entity.

After-Sales capabilityListed service activities include debugging, maintenance, repair, training, and equipment installation, and the supplier has documented procedures and records for handling customer complaints. However, it reports no overseas agents or branches, no overseas warehouse, no overseas showroom, and zero countries offering overseas services, limiting evidence of internationally localized support.

Production capacityThe supplier is a manufacturing factory and reports a peak- and off-season lead time within 15 working days. It has no in-stock capability, while outsourcing procedures and manufacturing-capacity contracts are marked unknown; therefore, production responsiveness is evidenced but overall capacity and supply-continuity controls are not fully established.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, flexible customization, ODM, and OEM services. These statements provide direct evidence of broad customization capability, supplemented by 3D software design and SDK support.

Client casesThe supplier states that it provides OEM services for well-known brands, which is direct evidence of at least one customer-reference category. However, no brand names, project details, quantities, or verifiable case studies are provided, so the depth of its customer track record cannot be assessed.

Product Q&A

Q:What is your minimum order quantity (MOQ)?

Our standard MOQ is 100 square meters. For custom requirements, simply provide your specifications and we'll calculate the most suitable quantity for you.

Q:Can we get samples before placing an order?

Yes! We offer free samples for evaluation (customers cover shipping costs). This allows you to test our products' quality and suitability before committing to larger orders.

Q:What is your production lead time?

Standard products: 3-5 working days. Customized orders: 5-7 working days. Large volume orders: Negotiable based on quantity.

Q:What shipping methods are available?

We offer flexible shipping solutions: Express shipping (DHL/FedEx/UPS) for urgent orders, Air freight for medium quantities, and Sea freight for large volume orders (most cost-effective). Our logistics team will recommend the optimal solution based on your order size, timeline and budget.

Q:How do you ensure product quality?

We implement strict quality control: Raw material inspection, In-process quality checks, and Final product testing.